<?php

$a = 0;
$b = 1;

//if($a = 0){
if(0 == $a){
  echo "I am in I If()";
} else {
  echo "I am in I else()";
}

if($b == 1){
  echo "I am in II I()";
} else {
  echo "I am in II else()";
}
